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Localization of Muscle Belly and Motor Entry Point in Peroneus Longus and Peronrus Brevis

Yang Wen;Deng Pengyan;Li Yuanbin;Xie Peng;Yang Fangjiu;Zunyi Medical College;Department of Anatomy,Zunyi Medical College;  
Objective This study aimed to provide the morphological data for clinical application of the peroneus longus and peroneus brevis by locating their muscle belly and motor entry point(MEP).Methods The peroneus longus and peroneus brevis were observed by Gross anatomy and their muscle belly and MEP were located in 30cadavers.Results ① The medial line of peroneus longus and peroneus brevis were on the line connecting the anterior border of fibular head with the posterior border of lateral malleolus.The mean length of a line between the anterior border of fibular head and the posterior border of lateral malleolus was 32.56±3.15cm.The percentage of length of muscle belly of peroneus longus and peroneus brevis with the length of fibula were 91.21±5.46%and 69.53±4.66 %,respectively.②The MEP of the peroneus longus and peroneus brevis from the fibular head were 4.94±0.86cm and 11.00±1.31cm,respectively.Conclusion When injecting the drug for resist pes-valgus of muscular spasticity, our study could provide the morphological data for clinical operator in locating of the muscle belly and MEP of the peroneus longus and peroneus brevis.
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